Jorrit Herder
8d9c0886cd
Created ECHO system call for testing purposes.
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Furthermore, a quick way to get one's own process number.
2005-05-27 13:57:00 +00:00
Jorrit Herder
c2be104821
Improved NOTIFY system: fixed a minor error, ignore pending notifications
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on SENDREC system calls. To be done: resource (buffer pool) management;
make it structurally impossible to run out of buffers.
2005-05-27 12:44:14 +00:00
Jorrit Herder
77c3213948
Optimized scheduling code. Old code is still available withing DEAD_CODE
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and NEW_SCHED_Q definitions. Some minor problems are being traced at the
moment. This commit is meant to backup my files.
--- Jorrit
2005-05-26 13:17:57 +00:00
Jorrit Herder
0899f82ab2
Fixed some minor issues with the NOTIFY call.
2005-05-24 14:35:58 +00:00
Ben Gras
168b7f2669
. fixed a recently introduced scheduler (run-queue) bug in proc.c
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. a little (optional) debugging code added to proc.c and associated
data in proc.h
2005-05-24 12:32:34 +00:00
Jorrit Herder
ccd17ecfed
New NOTIFY system call! Queued at kernel. Duplicate messages (with same source
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and type) are overwritten with newer flags/ arguments. The interface from
within the kernel is lock_notify(). User processes can make a system call with
notify(). NOTIFY fully replaces the old notification mechanism.
2005-05-24 10:06:17 +00:00
Jorrit Herder
d0a5a5d007
New system call added to PM: getprocnr(int *proc_nr) (like getpid);
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Minor update to scheduling code (unready().
2005-05-20 09:37:43 +00:00
Jorrit Herder
307c825515
New NOTIFY trap (IPC call) to send queued notification messages.
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The call works. Permission check, restriction of outstanding notifications
to be added. Low level code to make it work from within interrupt handlers
will be added as well.
2005-05-19 14:05:51 +00:00
Jorrit Herder
1cb880b158
Intermediate update---please await next commit.
2005-05-19 09:36:44 +00:00
Jorrit Herder
614f49b557
Fixed some comments and reorganized some code.
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Fixed minor bug in notify() function.
2005-05-18 10:36:23 +00:00
Jorrit Herder
ac0995259d
*** empty log message ***
2005-05-02 14:30:04 +00:00
Jorrit Herder
89ac678b9b
*** empty log message ***
2005-04-29 15:36:43 +00:00
Ben Gras
9865aeaa79
Initial revision
2005-04-21 14:53:53 +00:00
